Microsized SnS/Few-Layer Graphene Composite with Interconnected Nanosized Building Blocks for Superior Volumetric Lithium and Sodium Storage

时间:2020-12-10作者:浏览量:237


Microsized SnS/Few-Layer Graphene Composite with Interconnected Nanosized Building Blocks for Superior Volumetric Lithium and Sodium Storage

作者:Cheng, DL (Cheng, Deliang)[ 1,2 ] ; Yang, LC (Yang, Lichun)[ 1 ] ; Hu, RZ (Hu, Renzong)[ 1 ] ; Liu, JW (Liu, Jiangwen)[ 1 ] ; Zhu, M (Zhu, Min)[ 1 ]


ENERGY & ENVIRONMENTAL MATERIALS


DOI: 10.1002/eem2.12121


Early access icon在线发表日期: SEP 2020

文献类型:Article; Early Access


摘要

To develop anode materials with superior volumetric storage is crucial for practical application of lithium/sodium-ion batteries. Here, we have developed a micro/nanostructured SnS/few-layer graphene (SnS/FLG) composite by facile scalable plasma milling. Inside the hybrid, SnS nanoparticles are tightly supported by FLG, forming nanosized primary particles as building blocks and assembling to microsized secondary granules. With this unique micro/nanostructure, the SnS/FLG composite possesses a high tap density of 1.98 g cm(-3)and thus ensures a high volumetric storage. The combination of SnS nanoparticles and FLG nanosheets can not only enhance the overall electrical conductivity and facilitate the ion diffusion greatly, but alleviate the large volume expansion of SnS effectively and maintain the electrode integrity during cycling. Thus, the densely compacted SnS/FLG composite exhibits superior volumetric lithium and sodium storage, including high volumetric capacities of 1926.5/1051.4 mAh cm(-3)at 0.2 A g(-1), and high retained capacities of 1754.3/760.3 mAh cm(-3)after 500 cycles at 1.0 A g(-1). With superior volumetric storage performance and facile scalable synthesis, the SnS/FLG composite can be a promising anode for practical batteries application.


关键词

作者关键词:micro; nanostructure; SnS nanoparticle; few-layer graphene; volumetric storage; anode


KeyWords Plus:PERFORMANCE ANODE MATERIALS; ION BATTERY PERFORMANCE; RATE CAPABILITY; DOPED GRAPHENE; HIGH-CAPACITY; CARBON; SNS; SILICON; NANOTUBES; ULTRAFAST


作者信息

通讯作者地址:


South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China.

通讯作者地址: Zhu, M (通讯作者)


显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China.

地址:


显示更多[ 1 ]‎ South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China

显示更多[ 2 ]‎ Jiangxi Normal Univ, Inst Adv Mat, Nanchang 330022, Jiangxi, Peoples R China

电子邮件地址:memzhu@scut.edu.cn


基金资助致谢

基金资助机构显示详情授权号

National Natural Science Foundation of China (NSFC)


51621001

National Natural Science Foundation of China (NSFC)


51671088

51671089

查看基金资助信息   

出版商

WILEY, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA


类别 / 分类

研究方向:Materials Science


Web of Science 类别:Materials Science, Multidisciplinary